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An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen
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Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen
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What is photo synthesis? imm need friend anyone like to be my friend !...
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